Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project zzpj: Compilation failure: Compilation failure:
zzpj/breathalyser/service/UsersService.java:[35,50] error: cannot find symbol
zzpj/breathalyser/service/UsersService.java:[36,31] error: cannot find symbol
zzpj/breathalyser/repository/UsersRepository.java:[30,57] error: cannot find symbol
zzpj/breathalyser/repository/UsersRepository.java:[30,32] error: cannot find symbol
-> [Help 1]

To see the full stack trace of the errors, re-run Maven with the -e switch.
Re-run Maven using the -X switch to enable full debug logging.

For more information about the errors and possible solutions, please read the following articles:
[Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException